Electronics

can you elucidate actually what led to your power fault? you have said that it happened due to connection of the circuit through the earth wire? may be you have connected the line supply directly to the earth wire by mistake.

It is very likely that he has earth leakage trip due to load connected to earth in place of live to neutral. This will not damage anything except for earth relay tripping the mains power.

The human.

Disconnecting the energised earth wire exposes this component to the possibility of an electric shock. If the voltage is high enough, burns or electrocution could ensue.

This type of situation usually results in the failure of the component that normally keeps the smoke from escaping.

From the model it appears that it is 1.5 TR capacity split a.c. Cheek the wiring diagram provided along with the unit installation manual. Control circuits consist of many internal protection devices. Most likely fuse must have blown out . Check it .

The SMPS cannot be repaired most the time, but the common fault is the capacitor of 240V or 130 V depend of country you are. Check if capacitor can charge and discharge by using 9v battery.

The last Guest said, "Capcitors Short."

A high current short will, usually, blow out he end of an electrolytic, toast a Tantillum, or vaporize a cermic.

This is a type of "Crowbar" circuit which removed B+ from the circuit, catostrophically. Once the fuse is replaced, it may not blow, again. This could be very hazardous to your health.

If you must troubleshoot the device, use plastic wands and rubber gloves. Welder's Flash Gloasses may also help.

Good Luck in the contest

Seriously, did you check the breaker? That should have been the first thing to go in a straight ground fault.